Clinker extractor



Oct. 25, 1932.

C. BLOHM, JR

OLI KER EXTRACTOR Filed Oct. 15, 1951 6420014 as o.

Patented Oct. 25, 1932 UNITED stares PATENT OFFICE I CARL BLOHM, JR.,OF'SILVIS, ILLINOIS CLINKER nxrrmcron Application filed. October 15,1931. Serial No. 569,078.

It is within the province of the disclosureto improve generally and toenhance the utility of devices of that type to which the inventionappertains.

With the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawing Figure 1 shows, in side elevation, a deviceconstructed in accordance with the invention, parts being broken away,and parts being in section;

Figure 2 is a cross section on the line 22 of Figure 1;

Figure 3 is a cross section on the line 33 of Figure 1;

Figure 4 is a cross section on the line 4-4 of Figure 1;

Figure 5 is a bottom plan, parts being broken away.

The device forming the subject matter of this application is made ofmetal throughout, care being taken to select a metal which will be welladapted to withstand the heat and hard use. The article comprises abody, which, as a whole, is marked by the numeral 1. The body 1 includesa tube 2, which may be a piece of commercial pipe. A cap 3 is threadedon the rear end of the tube 2 and is held against rotation thereon. Thecap 3 has a rearwardly prolonged tubular extension 4, provided with apolygonal bore 5, arranged coaxially with respect to the bore of thetube 2, the bore preferably being square in cross section.

On the forward end of the tube 2, a cap 6 is threaded andsecured. Thecap 6 has a circular opening 7, arrangedcoaxially with i} respect to thebore of the tube 2. The cap 6 carries a jaw 8, arranged substantially atright angles to the body 1. In width, the aw 8, as shown in F igure'2,broadens as it extends downwardly, and then contracts in width towardits lower end. In thickness, the jaw 8 tapers from its upper end to itslower end, as Figure 1 will show. The jaw 8 comprises two fingers 9,with a space 10 between them. Ribs 11 extend forwardly from the jaw 8,and-are located on opposite sides of the space 10 and immediatelyadjacent to said space. The ribs 11 taper as they extend downwardly, soas not to detract from the general pointed construction of the fixed jaw8.

A slide 12 is provided, and is in the form of a rod, of square crosssection, and polygonal in cross section, in any event. The slide 4 ofthe cap 3, through the circular opening 7 of the cap 6. 9n the rear endof the slide 12 there is a handle 14, of any desired construction, andon the forward end of the slide 12 there is a jaw 15, disposedapproximately 4 at right angles to the body 1. The jaw 15 preferably isbluntly pointed at its lower end, as shown at 16 in Figure 1.

The general operation of the implement will be understood readily,without an extended explanation. The slide 12 is drawn backwardly, theclinker is engaged between the jaw 15 and the ribs 11, and the clinker,

in. this way, of course can be lifted out of the should not rotate on anaxis, because the jaw 12 passes through the bore 5 ofthe extension idoes not have a 15 always should be in line with the jaw 8, in

onal bore 5. The cap 3, including the polyg order to engage and hold theclinker properly. It is in order to prevent the slide 12 from rotating,that the cap 3 is provided, the slide 12 being held against rotation inthe polygonal bore 5, can be made cheaply, and it is unnecessary to goto the expense of making the tube 2 with a square bore. Although theopening 7 on the cap 6 is circular, as shown in Figure 2, it is of suchdiameter that the slide 12 will be guided therein, as the slide isreciprocated, the diameter of the opening 7 being equal to the diagonalof the slide 12. The slide 12 is guided for right line reciprocation inthe opening 7 of the cap 6, and in the bone 5 of the extension 4 on thecap 53, and, as has been explained hereilnbefone, the bore 5 has anadditional purpose, in that it prevents the slide 12 from rotating.

In assembling the tool, the handle 14 is formed on the slide 12, the cap3 is placed on the slide, the slide is introduwd through the tube 2, thecap 6 is placed on the slide, and the jaw 15 is formed on the slide. Upto this point, the caps 6 and 3 have not been threaded on the ends ofthe tube 2. The cap 3 can be threaded readily on the rear end of thetube, by rotatingthe cap, along with the slide 12.

If the cap 6 had a polygonal bore, like the bore 5 of the cap 3, itwould be diflicult to thread the cap 6 on the end of the tube 2, becausethe slide 12, the cap 3, and the cap 6 would have to be rotatedtogether, and there is not one chance in a thousand that the threads onboth ends of the tube 2 would be so located that the caps 3 and 6 couldbe rotated together, to thread them on the ends of the tube. Therefore,the opening 7 in the cap 6 is made circular, so that, after the cap 3has been threaded on one end of the tube 2. the cap 6 can be rotated,independently of the ca 3, to thread the cap 6 on the end of the tuThere are at least two reasons for having the outstanding ribs 11 on thejaw 8. One of these reasons is that when the clinker is engaged by theinner edge of the jaw 15, and by the ribs 11, the parts specified have athreepoint hold on the clinker. Another reason for having the ribs 11 isthat when the slide 12 is retracted, the jaw 15 fits between the ribs11, and the fingers 9 and the jaw 15 then cooperate to form a pointedlateral part, enabling the device to be used conveniently and withsafety to the article, as an ordinary poker. By having the space 10between the fingers 9, the jaw 8 will always clear itself readily ofdirt, and there will be no clogging between the ribs 11, the outer edgesof the ribs always being left clear, and the ribs, therefore, being atall times in condition to cooperate with the jaw 15 in affording thethree-point hold on the clinker, which has been mentioned hereinbefore.

Having thus described the invention, what is claimed is A clinkerextractor comprising a tube having a circular bore, forward and rearcaps threaded on the tube, the forward cap having a circular opening,and carrying a lateral jaw, the rear cap having a polygonal openmg, aslide of polygonal cross section extended through the body and the capsand held against rotation in the opening of the rear cap, the slidehaving a lateral jaw cooperati with the jaw of the forward cap, theslidlfiieing guided for longitudinal movement in the circular opening ofthe forward cap, as well as in the polygonal opening of tin rear cap,the circular opening permitting the forward cap to be rotated on theslide and threaded on the body, independently of the slide and the rearcap.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signature.

CARL BLOHM, JR.

